feat(review): Needs review page, SAVED VIEWS row and Activity hook

The concept's Metadata review page at #/review: the notice with the
exact pending count, the queue's media cards (shared with Images through
image-card.mjs), and the Resolve the association panel with the sampler
context, the chosen path's prompt blocks, Leave for later and Apply
association. Apply takes a fresh capture; refusals keep the selection
and explain inline; an unanswered decision is resent once. SAVED VIEWS
lists Needs review after Favorites with its count (retires D50), and an
ended scan that recorded review items offers Review metadata in Activity
(D87). Queue items carry the card's media url.

py/api/review.py

@@ -24,10 +24,12 @@ import hmac
 import json
 import os
 import re
+import urllib.parse
 
 from aiohttp import web
 
 from .annotations import _HEX64, _TOKEN, _UUID, _capture_error, _error
+from .inspection_service import VIDEO_EXTENSIONS
 from .prompts import bad_request
 
 try:
@@ -253,7 +255,7 @@ class ReviewRoutesMixin:
     def _review_view(self, row: dict, roots, real_roots) -> dict:
         """The public ReviewItem of one stored row (no path, no locator)."""
         found = format_review_target(row["spelled_path"], row["locator"], real_roots)
-        target = None
+        target = url = None
         if found is not None:
             index, relative = found
             target = {
@@ -261,16 +263,25 @@ class ReviewRoutesMixin:
                 "root_scope": self._gallery_root_scope(roots[index], index),
                 "path": relative,
             }
+            # The Images listing's media URL for the same file (formatting only).
+            url = (
+                "/prompt_manager/images/serve/"
+                f"{urllib.parse.quote(relative, safe='/')}?root={index}"
+                f"&root_scope={target['root_scope']}"
+            )
+        filename = os.path.basename(row["spelled_path"])
         return {
             "id": row["id"],
             "state": row["state"],
             "revision": row["revision"],
             "created_at": row["created_at"],
-            "filename": os.path.basename(row["spelled_path"]),
+            "filename": filename,
             "target": target,
             "unavailable": target is None,
             "candidate_count": row["candidate_count"],
             "limited": row["limited"],
+            "url": url,
+            "is_video": os.path.splitext(filename)[1].lower() in VIDEO_EXTENSIONS,
         }
 
     @staticmethod